It can be thegood solution for connecting round air pipes to ventilation systems. Its robust construction ensures a secure and efficient connection to your fan, enhancing airflow and reducing energy costs. Ideal for use in HVAC systems, this adapter provides a reliable and solution for improved air distribution and indoor comfort. Features -Color:Silver -Material:Galvanized plate -Size:12.00X12.00X5.20cm/4.72X4.72X2.04in -Sturdy construction: this flange air vent is reliable, great for longterm use in industrial settings -Straight round interface: the straight round conversion interface design allows for easy installation and connection, streamlining the setup process -Smooth: the electrostatic spraying process results in a smooth surface, ensuring the product's durability and longevity -Versatile application: suitable for various fans, this flange air vent is widely used in industrial applications, providing a reliable connection for different systems -Precision manufacturing: precision manufacturing ensures a stable and secure connection, enhancing the safety and reliability of your ventilation system Package list: 1 x duct connector